Example
Input
15
Output
True
15 is divisible by both 3 and 5.
Full lesson preview
Check Multiple of 3 and 5
Determine whether a number is a multiple of both 3 and 5.
Python practice10 minControl Flow (If–Else Logic)BeginnerLast updated March 15, 2026
Problem statement
Given an integer n, return True if n is divisible by both 3 and 5, otherwise return False. This is equivalent to checking divisibility by 15. Handle zero and negative numbers correctly.
Task
Implement a function that returns True when a number is divisible by both 3 and 5 (i.e., divisible by 15).
Examples
Input format
A single integer n.
Output format
A boolean: True if n is divisible by both 3 and 5, otherwise False.
Constraints
-10**9 <= n <= 10**9. Input will be integer.
Samples
Sample 1
Input
10
Output
False
10 is divisible by 5 but not by 3.